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require 'active_support/core_ext/file'
module ActionView
module Helpers
module AssetTagHelper
module StylesheetTagHelpers
extend ActiveSupport::Concern
# Computes the path to a stylesheet asset in the public stylesheets directory.
# If the +source+ filename has no extension, <tt>.css</tt> will be appended (except for explicit URIs).
# Full paths from the document root will be passed through.
# Used internally by +stylesheet_link_tag+ to build the stylesheet path.
#
# stylesheet_path "style" # => /stylesheets/style.css
# stylesheet_path "dir/style.css" # => /stylesheets/dir/style.css
# stylesheet_path "/dir/style.css" # => /dir/style.css
# stylesheet_path "http://www.example.com/css/style" # => http://www.example.com/css/style
# stylesheet_path "http://www.example.com/css/style.css" # => http://www.example.com/css/style.css
def stylesheet_path(source)
asset_paths.compute_public_path(source, 'stylesheets', :ext => 'css', :protocol => :request)
end
alias_method :path_to_stylesheet, :stylesheet_path # aliased to avoid conflicts with a stylesheet_path named route
# Computes the full URL to a stylesheet asset in the public stylesheets directory.
# This will use +stylesheet_path+ internally, so most of their behaviors will be the same.
def stylesheet_url(source)
URI.join(current_host, path_to_stylesheet(source)).to_s
end
alias_method :url_to_stylesheet, :stylesheet_url # aliased to avoid conflicts with a stylesheet_url named route
# Returns a stylesheet link tag for the sources specified as arguments. If
# you don't specify an extension, <tt>.css</tt> will be appended automatically.
# You can modify the link attributes by passing a hash as the last argument.
# For historical reasons, the 'media' attribute will always be present and defaults
# to "screen", so you must explicitely set it to "all" for the stylesheet(s) to
# apply to all media types.
#
# stylesheet_link_tag "style" # =>
# <link href="/stylesheets/style.css" media="screen" rel="stylesheet" />
#
# stylesheet_link_tag "style.css" # =>
# <link href="/stylesheets/style.css" media="screen" rel="stylesheet" />
#
# stylesheet_link_tag "http://www.example.com/style.css" # =>
# <link href="http://www.example.com/style.css" media="screen" rel="stylesheet" />
#
# stylesheet_link_tag "style", :media => "all" # =>
# <link href="/stylesheets/style.css" media="all" rel="stylesheet" />
#
# stylesheet_link_tag "style", :media => "print" # =>
# <link href="/stylesheets/style.css" media="print" rel="stylesheet" />
#
# stylesheet_link_tag "random.styles", "/css/stylish" # =>
# <link href="/stylesheets/random.styles" media="screen" rel="stylesheet" />
# <link href="/css/stylish.css" media="screen" rel="stylesheet" />
#
def stylesheet_link_tag(*sources)
options = sources.extract_options!.stringify_keys
sources.uniq.map { |source|
tag_options = {
"rel" => "stylesheet",
"media" => "screen",
"href" => path_to_stylesheet(source)
}.merge(options)
tag(:link, tag_options)
}.join("\n").html_safe
end
end
end
end
end
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